Mark from Mt. Vernon, Il writes
We would not recommend tank mixing the Speedzone EW Broadleaf Herbicide for Turf and Tenacity if you are using as a post emergent, only if you are applying as a pre-emergent application. With Tenacity you are only spot treating weeds directly that are actively growing, you would not broadcast as you can with the EW. Also you are required to use a surfactant with Tenacity for post emergent applications and EW does not require. You can use Speedzone EW the same day as Tenacity Herbicide. Just allow areas to dry between treatments.
Answer last updated on: 03/29/2021